# DrillLock vs NumLock

DrillLock and NumLock are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. DrillLock sells 2 in-app purchases, starting at $2.99 per month and NumLock sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | DrillLock | NumLock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/drilllock-screen-time-blocker/id6759181330/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 5 days | — |
| Monetization | Freemium | — |
| Size | 7 MB | 2 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [FRONTLINE LLC](https://appshunter.io/developer/1877229947) | [Peter Li](https://appshunter.io/developer/424298074) |

## What reviewers say

### DrillLock

[App page](https://appshunter.io/ios/app/drilllock-screen-time-blocker/id6759181330)

This app requires users to solve a math problem before accessing distracting applications, helping to create focused study sessions. It offers scheduled blocking, usage limits, and temporary unlocks for essential apps. A pro subscription unlocks advanced features for serious learners.

**Highlights:** Math challenge to unlock apps, Scheduled app blocking, Usage limit blocking, Temporary unlocks, Essential app exceptions, Multiple rule support (Pro)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Challenge Pack Monthly | $2.99 | per month |
| Challenge Pack Yearly | $19.99 | per year |


### NumLock

[App page](https://appshunter.io/ios/app/numlock-math-screen-lock/id6761402140)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| NumLock Pro Monthly | $4.99 | per month |
| NumLock Pro Annual | $39.99 | per year |


## Frequently asked questions

### Is DrillLock free?

DrillLock is free to download, with in-app purchases available.

### Is NumLock free?

NumLock is free to download, with in-app purchases available.

### Do DrillLock or NumLock have ads?

Neither DrillLock nor NumLock shows ads.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*